Machine for grinding balls or spheres.



L. J. ORBCELIUS.

MACHINE FOR GRINDING BALLS 0R SPHERES.

APPLICATION FILED 00124, 1910. RENEWED AUG. 1 1911.

1,929,808, Patented Mar. 19, 1912.

2 SHEETS-SHEET l.

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\md. Cmacsehue ATTORNEY 5 I L. J. OREOELIUS.

MACHINE FOR GRINDING BALLS 0R SPHERES.

APPLICATION FILED um. 24, 1910 RENEWED AUG. 17, 1911.

Patented Mar. 19, 1912.

2 SHEETS-SHEET 2.

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' L..J.G aoal'xus .ATTORNCYZY ,:a;-;tcitizen:of.theUnitedStates of America,

can iisiding in the city of Ste Louis and State of *Missouri, have invented certain new and diuseful. Improvements; in Machines for 4 Grinding-Balls 01 Spheres, of which the'fol-v "I glowing. is a full.-'clear,jand exact descripv tion', reference being had to the accompany- 1,1 0 ingzdrawings,-f ot ming part of this specifircation, i i;- ;My's.invention relates to a machine for y grindin'ghalls; andspheres; such for 1nstan'ce'-asthose made of glass, porcelain, or

' IBE-antilogouS'fSubstance, and it has. for its ob- :ject' theproduction of a machine of this-descript ion;l)y-ivhicl1 the spherical bodies may "be rapidly ground from a rough condition .iiitm'perfectlyirue spheres.

fgure 1151s a longitudinal section ofmy machine. II is a vertical section taken '1lineII".II,--F igz I. Fig. III- is a verticalsect'ronztalien on line III-IILFig. I. v Fig. IV is a view, partly in elevation and apartlyiin' horizontal longitudinal section;

V 111" flier-accompanying drawings: 1- designaitesl'the-{basea of my machine surmounted by'posts 2,8,14,15 and 6'.

7'-designates a grinder head Supported by u "a'= shank 8 loosely mounted in the posts 2 and -asoaswbe capable of longitudinal move I ment ,therein. Extending longitudinally. ijthitough-rthis-head and shank is a duct 9.

i -through which liquid grinding material may flow; "The grinder head has mounted in it titits end a grinding blocklO that is aper- I t'u"red? in alinem'entwith the duct 9 in the i head and-it's'sh'ank: The grinder head and r' itsshanlfarenormally pressed in a forward 0"directionby a spring 11.

1 12 is. a pull back lever by which the grinder head' and as shank may be re f-"raet e'd against the-actionof'the spring 11. ""713"designatesa shaft journaled in the i -posts 5. and 6 at theo'pposite end of themafcliine from that at which the posts 2 and 3 are located. This shaftois located in alineffr'neiit with the grinder 'head' 7 andjis etiiiip'p'ed with a pulley 14 by whichit may i be rotated. Q In the shaft 13'. eccentricxto its "X isii sf antra 15'," and will be seen that,

nasmuch as the shaft-133s in alineme'nt, M r "Zwitliithegrinder head 7; said" bore; 15 by be- 7 "ifig 'eceentrictd'th'c j axis of'the" shaft, is, loouted out of alinement with the center of the onto "the catcherarm after itilmsi;

'linesFigiIII to the position seen 1 m itrnn, -STATES PATENT OFFICE; "Louis LOUIS, MIssounI, 'assroiton 'iIQCHARLE S; A.-TH oMrsoN, v a or S'LLOUIS, missoun i a Specification of Letters Patent :Patel ltc d linemen 1e d 0ctober24, 1910, Serial No. 588,612; Renewed August 17,1911. swarm, 6144,7155! grinder head at which the grinder- .is located.

16 designates a shaft extending nally through the shaft 13 inits bore 15and adapted to rotate therein independently-mi the rotation of said shaft 13. The shaft 16,

is provided atits outer end with a drive pulley 17 to which a belt may be ap'plied for imparting movement thereto,- preferably 1n a direction the-reverse in which the shaft/ 13 5 is rotated", when power is communicated theretoby a-beltapplied toits pulley 14..--', The shaft IG-has fixed to it. at its; forward cnd a head 18' that is arrangedinopposi p tion. to the grinder head-,7 .and carries'a presser disk 19, the a disk. bein of any sui t ablfi) pliable material, butpre erablyeofsoftj ru or. s;

2O designates adelivery-chutevthrough whioh. the balls tobe ground ,in= the.{iselof .57 my machine are delivered betweenthe'driver head 7 and the driver diskl9. .The.lower or outlet end of this chute, terminateswzdi-l rectly above a longitudinal movable-grinder;- I head 7, and is provided withan elongated enlargement 21 of suflicient length; longitu dinally of the machine to accommodategtwo' j balls that are to bedelivered from the ma chine to be ground. 1 i

22 designates a trough located beneaththe ttt'r base of the machine below the grinder head and presser I trough is adapted to receive thehalls when. they have been ground and are'releascd from position betweenathe grind' g block lofand' 9.0, the presser disk 19, as will h'ereinafter 'moi'ez' fully appear. I

23 designates a catcherfarmpivot e at:

to the .post' 4' and occupying a. positionjbe tween the grinder head 7 and thefpiesser' ed toperformf the service ofeatching eac I ball asiit"de scends from the chute 20 intosaid disk 19, this arm beingdesi ace and position it between the grinding lock-'10! and the presser disk 1-9; The catcher arm is provided at its upper side with ant gen-24 located intermediate of'its ends that; 'as ahrest-"forthe balls whenijtheyiidesc eh vated from' its normal "position seen in' disk [carrying head. This viding for movement of the cam block w en.

the lever 12 is operated either by a rearward pull thereon to retract the grinder head 7, or a forward movement occasioned by the return of the grinderhead and its shank to its normal position after it hasbeen ret'raeted. v, I

In the ,practicaluse of my grinding ma? chine, the operation is as follows: The halls, while in'the rough, are de os ited in the chuteand ermitted to escend therein so that they will-lie as seen in Fig. I. The operator to deposit a ballinto position to be ground moves the operating lever 12 rear-' wa rdly thereby imparting a rearward movement to the shank of the inder head and said head, with theresult t at the outermost ball in the enlarged outlet end of the chute 20 descends into the space between the 19. Upon the operation of the handlever,

as stated a pull is effected upon the rod 32 connected to said lever and the cam block 28 is moved rearwardly, permitting the spring 27 to draw the heel 26. of the catcher artn 23 in an advancing direction so that it first.

. This movement of the heel (if the catcher a'rm causes the catcher to be elevated from the positionseen in full lines Fig. III to the position seen in dotted lines Fig. III, in which latter position it is so disposed as to catch the ball descending in the space between the grinder head and the presser disk and position it centrally of the grindingblock 10. The operating lever is then released and the sprin 11 moves the grinder head and its-shank orwa'rdly-to cause it to v hold the ball between the grindin block and the presser disk while the cam biock 28 isreturned to its normal position and acts to return the catcher arm 23 to the'lowered position. A ball having been vpositioned, as stated, the shafts 13 and 16 are'both placed in'inotion, one being preferably rotated-in 'ne. direction and the other in thexopposite direction, and grinding fluid is caused to fiow through the grinder head and itsshank to the ball, for the Eurpose of assisting in,

grinding operation 0 ected thereon.

. be apparent that as the shaft 13 revolves, it

.carries with it the shaft 16 mounted therein It will eccentric to its axis, so that the head 18 and the presser disk 19 carried by the shaft 16 disk, by its contact with the ball to be ground, turnssaid ball with a universal movement while it bears against the grinding block-10. It will be plainly'undcrstood that the movement of the ball provided for by the action of the presser disk against it, which is subject to the movement of both of the shafts l3 and 16, is one iiivolving a multitude of turningsjthereof in every direction, and such movement is consequently herein designated as a universal movement.

I claim: 4

1. In a ball grinding a e'hine, a grinding member,'and means wherebya ball to be ground has a universal movement automatically imparted to it Whll(. .ll0.l(l in contact at a fixed point with said grinding member. 2. In a ball grinding-machine, a station- I ary grinding member, fand rotatable means whereby a ball to be, ground has a universal movement automaticallyimparted to it while held in contact at a fixed point with said grinding member.

3. In a-ball grinding machine, a grinding member, and means for holding a ball to be ground against said grinding member at a fixed point and automatically imparting a universal movement to the ball while it is so held. I 4 In a ball grinding machine, a grinding m'ember on which a'ball to be ground is held, v

and a presser member for holding the ball at a fixed point relative to the face of said said ball, means for rotating said presser member, and means'for moving said presser member whereby its axis may be moved around the point aew-hich the ball is supported.

' 6..In a ball grinding machine', a grinding member, a'rotatable 'sh'ait in alinenient with said grinding member, a shaft revolubly mounted in said first mentioned shaft eccen-. 'tric to its axis, and a presser member carried by said second shaft opposing said grinding member and-ada-ted to impart a. universal movement to the all to be ground d'urin rotation of said shafts. v. 7. ii a ball grinding-machine, a grinding member, a presser member for holding a ball to be ground to the face-of said grind-- ing-member and imparting a universal movement to it while so held, means for de livering aball to the space between said grinding member and presser member, and means for catching a ball when it is deposited between said members.

8. In a ball grinding machine, a grinding member, a presser member for holding a ball to be ground'to the face of said grinding member and imparting a universal movement to it while so held, means for delivering a ball to the space between said grinding member and presser member, and means for catching a ball when it is deposited between said members; said last named means comprising a catcher arm and a cam device for actuating said catcher arm.

9. In a ball'grinding machine, a grinding member, a presser member for holding a ball to be ground to the face of said grinding member and imparting a universal movement to itwhile so held, means for delivering a ball to the space between said grinding member and-Presser member, and means for catching a ball when it is deposited between said members; said last named means comprising a' spring controlled catcher arm and a cam device for operating said catcher arm.-

10. In a ball grinding machine, a longitudinally movable spring pressed grinding device, a rotatable resser member for holding the ball to be ground presented to said grinding device and imparting a universal movementto said ball, a grinding device retracting lever, means for delivering'balls to the space between said grinding device and presser member, a catcher arm adapted to be elevated into the space between said members to receive the balls entering thereinto, and a cam device connected to said operating lever for actuating said-catcher arm.

11. In a ball grinding machine, a grinding member adapted to engage a ball to be ground,a rotatable presser member opposing said grinding member and adapted to engage said ball, means for rotating said presser member, and means for moving said presser member whereby its axis is caused to travel in a circular path.

In testimony whereof, I have hereunto set my hand, this 15th day of October 191 LOUIS J. CRECELIUS. In the presence of- A. J. MoCAULnY, E. B. LINN. 

